OS MAX FS A-56II including silencer

Series FS-? (Alpha) is a new generation of OS four-stroke engines with a valve manifold. Compared to previous FS-Surpass engines, they are characterized by superior performance while maintaining the same build-in dimensions, making it easy to take advantage of the diverse range of modular design and construction plans of aircraft models designed for OS engines over the past decades.

• The new lubrication system eliminates the need for crankcase ventilation so that the overflow hose that is common in older engine generations is eliminated.
• The new 40NA double-cylinder carburettor ensures stable and regular running over the entire speed range and easy engine setup. The suction nozzle is provided with a nozzle shaped like a Venturi tube reducing fuel leakage into the engine cover, positively influencing the flow of intake air and reducing the noise produced by the suction.
• A new, larger volume muffler and rear exhaust tailpipe adjustment to the desired direction ensures effective damping and gives the engine a soft, soft sound.

FS? -56II is a four-stroke valve manifold engine designed for all kinds of aircraft, especially suitable for RC models. It is fitted with a 40NA double-carb carburetor. Exhaust silencer types F-4040 are also available in the basic assembly. The exhaust throat orientation can be changed by rotating the rear of the shock absorber by 360 °, the body of the shock absorber, and the distance between the cylinder head and the silencer can be adjusted using a threaded transducer. They can also be used as flexible goosenecks ("goose neck") with a length of 120 to 240 mm, which are particularly suitable for hidden installation inside the car covers.

• The crankshaft has a screw thread for the UNF 1 / 4-28 propeller nut, an OS lock nut set is provided in the basic engine assembly for reliable propeller attachment.
• Recommended dimensions of propellers: Sport and Acrobat: 12x6 ~ 8 ", 13x6" / Scale: 13x6 ~ 7 ", 12x6 ~ 8"
• Recommended fuel tank: 220-300 ml; The 220 ml tank is sufficient for 12 minutes, provided you are still flying full throttle" / Li>
• Recommended fuel: at least 18% castor or synthetic oil, 5-20% nitromethane.
• Recommended candle: OS MAX type F.
• Same installation dimensions as FS-52 Surpass and FS? -56.

The engine kit includes: FS? -56II engine with RC carburetor 40NA, exhaust silencer F-4040, operating instructions.